VDB
CVE-2026-20806
CVE-2026-20806
PUBLISHED
CVSS 5.5 MEDIUM
Windows COM Server Information Disclosure Vulnerability
Reported by microsoft · Published April 14, 2026
Access of resource using incompatible type ('type confusion') in Windows COM allows an authorized attacker to disclose information locally.
Risk scores
CVSS 3.1
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 Version 1809 | 10.0.17763.0 |
| Microsoft | Windows 10 Version 21H2 | 10.0.19044.0 |
| Microsoft | Windows 10 Version 22H2 | 10.0.19045.0 |
| Microsoft | Windows 11 version 23H2 | 10.0.22631.0 |
| Microsoft | Windows 11 Version 23H2 | 10.0.22631.0 |
| Microsoft | Windows 11 Version 24H2 | 10.0.26100.0 |
| Microsoft | Windows 11 Version 25H2 | 10.0.26200.0 |
| Microsoft | Windows 11 version 26H1 | 10.0.28000.0 |
| Microsoft | Windows Server 2019 | 10.0.17763.0 |
| Microsoft | Windows Server 2019 (Server Core installation) | 10.0.17763.0 |
| Microsoft | Windows Server 2022 | 10.0.20348.0 |
| Microsoft | Windows Server 2022, 23H2 Edition (Server Core installation) | 10.0.25398.0 |
| Microsoft | Windows Server 2025 | 10.0.26100.0 |
| Microsoft | Windows Server 2025 (Server Core installation) | 10.0.26100.0 |
| microsoft | windows_11_24H2 | 10.0.26100.0 |
| Microsoft | Windows Server 2019 | 10.0.17763.0 |
| microsoft | windows_10_21H2 | 10.0.19044.0 |
| Microsoft | Windows Server 2025 (Server Core installation) | 10.0.26100.0 |
| microsoft | windows_server_23h2 | 10.0.25398.0 |
| microsoft | windows_10_22H2 | 10.0.19045.0 |
…and 19 more
Timeline
- Apr 14, 2026 CVE Published
- Apr 14, 2026 PoC Published (2 in total, the first dated here)
- Apr 15, 2026 Security Advisory (5 in total, the first dated here)
- May 18, 2026 EPSS Score (30 in total, the first dated here)
- Jul 3, 2026 Coalition ESS Score
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln CVE-2026-20806
vulnetix vdb fixes CVE-2026-20806Or with curl, using the org id and key from your account page:
curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
"https://api.vdb.vulnetix.com/v2/vuln/CVE-2026-20806/fixes/registry"The Community plan is free and allows 50 queries a day. Get a free API key · API quickstart
References
- Windows COM Server Information Disclosure Vulnerability vendor-advisorypatch